<html>
<head>
<title> Setting Up Spam Protection Based on DomainKeys </title>
<meta name="Keywords" content="" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="stylesheet.css"/>
<script src="locate.js"></script>
<link href="prettify.css" type="text/css" rel="stylesheet" />
<script type="text/javascript" src="prettify.js"></script>
</head>
<script src="highlight.js"></script>
<body bgcolor="#FFFFFF" text="#000000" link="#0000A0" alink="#008000" vlink="#FF0000" onLoad="FindCorrectTOCPage(); prettyPrint()">
<table cellpadding="0" cellspacing="0" border="0">
<tr valign="top">
<td>
<p class="pagenavigation"><a href="16875.htm" target="_self"><img src="38976.gif" alt="Previous page" height="16" width="16" vspace="0" hspace="1" align="top" border="0"> Previous page</a></p></td>
<td>
<p class="pagenavigation"><a href="16876.htm" target="_self"><img src="38977.gif" alt="Next page" height="16" width="16" vspace="0" hspace="1" align="top" border="0"> Next page</a></p></td>
<td>
<p class="pagenavigation"><a href="toc4151860.htm" target="TOC"><img src="38970.gif" alt="Locate page" height="16" width="16" vspace="0" hspace="1" align="top" border="0"> Locate page</a></p></td>
<td>
<p class="pagenavigation"><a href="toc4151860.htm" target="TOC"><a class="" title="" href="javascript:print();" target="_self"><img src="39072.gif" alt="Print this page" height="16" width="16" vspace="0" hspace="1" align="top" border="0"></a></a></p></td>
</tr>
</table>
<h4 class="heading4">Setting Up Spam Protection Based on DomainKeys</h4>
<p class="procedureheading">To switch on spam protection based on DomainKeys:</p>
<ol class="procedurelistnumber"><li class="procedurelistnumber">Go to <strong class="specialbold">Server</strong> &gt; <strong class="specialbold">Mail</strong>.</li><li class="procedurelistnumber">Under the <strong class="specialbold">DomainKeys</strong> <strong class="specialbold">spam protection</strong> group, select the following options:<ul class="listbullet2"><li class="listbullet2"><strong class="specialbold">Allow signing outgoing mail. </strong>Selecting this option allows you and your customers to switch on support for DomainKeys e-mail signing on a per-domain basis through the domain administration screens of the control panel (<strong class="specialbold">Domains &gt; </strong><strong class="placeholder">domain name</strong><strong class="specialbold"> &gt; Mail &gt; Preferences &gt; <strong class="specialbold">Use DomainKeys spam protection system to sign outgoing e-mail messages</strong></strong> option). It does not automatically switch on signing of outgoing e-mail messages. <strong class="specialbold"> </strong></li><li class="listbullet2"><strong class="specialbold">Verify incoming mail</strong>. Selecting this option will configure the DomainKeys system to check all e-mail messages coming to e-mail users under all domains hosted on the server. </li></ul></li><li class="procedurelistnumber">Click <strong class="specialbold">OK</strong>.</li></ol><p class="bodytext">Now your mail server will check all incoming e-mail messages to ensure that they come from the claimed senders. All messages, sent from the domains that use DomainKeys to sign e-mail, which fail verification will be discarded. All messages, sent from the domains that do not participate in the DomainKeys program and do not sign e-mail, will be accepted without verifying.</p>
<p class="procedureheading">To switch on signing outgoing e-mail messages for a single domain:</p>
<ol class="procedurelistnumber"><li class="procedurelistnumber">Go to <strong class="specialbold">Domains &gt; </strong><strong class="placeholder">domain name</strong><strong class="specialbold"> &gt; Mail &gt; Preferences.</strong></li><li class="procedurelistnumber">Select the <strong class="specialbold">Use DomainKeys spam protection system to sign outgoing e-mail messages</strong> check box.</li><li class="procedurelistnumber">Click <strong class="specialbold">OK</strong>.</li></ol><p class="procedureheading">To switch on signing outgoing e-mail messages for a number of domains at once:</p>
<ol class="procedurelistnumber"><li class="procedurelistnumber">Click <strong class="specialbold">Domains</strong>.</li><li class="procedurelistnumber">Select the check boxes to the left of the domain names you need. To select all domains in the list, select the upper left check box in the column heading. </li><li class="procedurelistnumber">Click <strong class="specialbold">Group Operations</strong>.</li><li class="procedurelistnumber">Under <strong class="specialbold">Preferences</strong>, select the <strong class="specialbold">Switch on</strong> option next to the <strong class="specialbold">Use DomainKeys spam protection system to sign outgoing e-mail messages</strong> field.</li><li class="procedurelistnumber">Click <strong class="specialbold">OK</strong>.</li></ol><p class="bodytext">Now, the following will happen for the selected domains:</p>
<ul class="listbullet"><li class="listbullet">Private keys are generated and placed in the server's database.</li><li class="listbullet">Public keys are generated and placed in the TXT resource records created in the domains' DNS zones.</li><li class="listbullet">The sender's policy advertised in the DNS TXT resource records is set to &quot;all e-mail messages sent from this domain must be cryptographically signed; if someone receives an e-mail message claiming to originate from this domain, which is not signed, then this e-mail must be discarded.&quot;</li><li class="listbullet">Outgoing e-mail messages are digitally signed: the &quot;DomainKeys-Signature&quot; header containing a signature based on a private key is added to the message headers.</li></ul>


</body>
<script>highlightTOC()</script>
</html>

